OK, here's the full set of files you'll need to install and the latest DarkScreen adaptation.
Place these files/folders inside your Mach3 folder. Where the folder is a duplicate of an existing folder in your installation, just place the contents of the folder inside the existing folder.
As always, USE THIS SCREEN SET AT YOUR OWN PERIL. I take no responsibility for the installation, implementation or use of these files. Please proceed with caution, and check the underlying code (button script and/or macro) for potential issues before you use it.
Also, it will take several posts to fully upload everything.
That said, enjoy!